Table 1
Warm H2 and total column densities in selected DF positions of the Orion Bar PDR.
| N(H2)warm |  |
N(H2)warm |  |
N(H2)warm |  |
|
|---|---|---|---|---|---|---|
| Position | (cm−2) | (cm−2) | (cm−2) | (cm−2) | (cm−2) | (cm−2) |
| No extinction correction | Correction 1(b) | Correction 2(c) | ||||
| DF1 | 3.50 × 1020 | 1.05 × 1021 | 1.64 × 1021 | 4.92 × 1021 | 9.07 × 1020 | 2.72 × 1021 |
| DF2 | 5.42 × 1020 | 1.63 × 1021 | 7.76 × 1020 | 2.33 × 1021 | 1.11 × 1021 | 3.33 × 1021 |
| DF3 | 7.47 × 1020 | 2.24 × 1021 | 8.71 × 1020 | 2.61 × 1021 | 1.58 × 1021 | 4.73 × 1021 |
Notes. (a)Total column density with respect to H nuclei assuming NH ≃ N(H) + 2 N (H2)warm and N (H) ≃ N (H2)warm in these DFs. (b)Extinction determined in the intermingled formalism by Peeters et al. (2024). The total (foreground and internal) visual extinction toward DF1, DF2 and DF3 positions is 37.3, 8.64, and 3.70 mag, respectively (see their Table 1). (c)Extinction determined by Van De Putte et al. (2024) assuming a screen geometry and 23, 14, and 18 mag of visual extinction toward DF1, DF2, and DF3, respectively.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.